This clinical practice guideline is based on a systematic review of peer-reviewed articles published from 1966 to January 27th, 2015 with regard to the surgical management of osteoarthritis of the knee in patients over the age of 18 years. The guideline development group opted to include more contemporary literature to make our conclusions as relevant as possible to the current practice of orthopaedic surgeons. In addition to providing practice recommendations, this guideline also highlights limitations in the literature and areas that require future research. This guideline is intended to be used by all qualified and appropriately trained physicians and surgeons involved in the management of surgical management of osteoarthritis of the knee. It is also intended to serve as an information resource for decision makers and developers of practice guidelines and recommendations.